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KRSEC 31.8 Stem 50mm Bike Stem Mountain Bike Stems Short Handlebar MTB Stem Aluminum Alloy for Most Bicycle,Road Bike,BMX,DH,FR,Fixie Gear Cycling Accessories

4.1 4.1 out of 5 stars 132 ratings

$24.99 with 7 percent savings
Typical price: $26.99

This is determined using the 90-day median price paid by customers for the product on Amazon. We exclude prices paid by customers for the product during a limited time deal.
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Colourful
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Purchase options and add-ons

Color Colourful
Brand KRSEC
Material Aluminum
Bike Type Road Bike, Fixed Gear Bikes, BMX Bike

About this item

  • Easy to Install: Suitable for 28.6MM fork and 31.8MM handlebar installed. Just connect up the original front fork stem.
  • Universal Short Handlebar Stem:Suitable for most road Bike, bicycle, mountain bikes, city bikes etc.
  • Durable Material: The bike stem is made of aluminum.
  • Adjustable Stem: Use the adjustable stem to achieve a more comfortable riding position.When you need a shorter stem to have a good cycling experience.
  • Unique Design: Interlocking U-shaped colorful handlebar clamp geometry transferring more load through the bike stem. Opposing bolts on steer tube clamp provides extreme clamping power while Stress on the steer tube.

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Ships from and sold by Canine Kingdom LLC.
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Product Description

31.8 Stem 50mm Bike Stem Mountain Bike Stem Short Handlebar

PRODUCT OVERVIEW

This bike 31.8 mm stem adopts CNC numerical control technology, integrated turning and forming, Lightweight hollow designand, has extremely high strength,Comes with 6 unique rainbow Stem screws, hard and wear-resistant, long-term use bolts not stripped.

We've also painstakingly added a anodizelook to bicycle stem, which is anti-rust and anti-oxidant for a pure and beautiful color.

When you have KRSCT bike stem 31.8, you are the protagonist.

Mountain Bike Stem 50 mm

YOUR HOME TURF, YOUR CALL

Comfort

Performance

Steering and handling

KRSEC Bike Stem

Are you troubled by these problems. How is the quality? Are the dimensions accurate? Is it rustproof? Will the screws come off? Is it anodized? Will it break after a long time?

We designed this 31.8 Stem 50mm Bike Stem to solve these problems for you.

SEVEN CHARACTERISTICS

1: Made of aviation-grade aluminum alloy AL7075-T6 precision CNC machining,

2: Precise computer numerical control processing makes his size very accurate,

3: Adopt skeleton design, light weight, only weighs 160g, reduce resistance.

4: Anodizing treatment, anti-rust, anti-oxidation, wear-resistant, non-fading,

5: Rainbow aluminum alloy screws, durable and will not peel off;

6: The incision is ground and polished without sharp burrs.

7: Red fashion appearance, laser engraved pattern and LOGO, exquisite appearance

black

ANODIZING EXTERIOR

Brilliant color, antioxidant appearance, no rust. Computerized CNC machining, 31.8 Stem 50mm Bike Perfect fit for handlebars.

black

31.8 Stem 50mm Bike Stem

50mm size

31.8 Stem 50mm Bike Stem

31.8 Stem 50mm Bike Stem

31.8 Stem 50mm Bike Stem

31.8 Stem 50mm Bike Stem Mountain

31.8 Stem 50mm Bike Stem

KRSEC Bike Stem

31.8 Stem 50mm Bike Stem
KRSCT BIKE

THE CHOICE IS YOURS

Quality

Safety

Refinement

Comfort

Performance

Steering and Handling

Why is a short handlebar suitable for mountain bikers and riders who like a challenging ride?

Is more conducive to the control of the bike, so that the bike steering is more flexible, and the short stem with the long handlebar,will safer and more stable at high speed.

  • All-out effort Can it handle endurance racing?
  • Yes. But what about tight corners? No problem. Give it your all and enjoy it.
KRSEC Bike Stem 31.8
Mountain Bike Stem Short Handlebar

Product information

Technical Details

Additional Information

Feedback

KRSEC 31.8 Stem 50mm Bike Stem Mountain Bike Stems Short Handlebar MTB Stem Aluminum Alloy for Most Bicycle,Road Bike,BMX,DH,FR,Fixie Gear Cycling Accessories

KRSEC 31.8 Stem 50mm Bike Stem Mountain Bike Stems Short Handlebar MTB Stem Aluminum Alloy for Most Bicycle,Road Bike,BMX,DH,FR,Fixie Gear Cycling Accessories


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Customer reviews

4.1 out of 5 stars
4.1 out of 5
132 global ratings

Customers say

Customers like the appearance, quality and performance of the outdoor recreation product. For example, they mention that it looks nice, it works well and that the rainbow anodizing looks good. Opinions are mixed on the weight.

AI-generated from the text of customer reviews

17 customers mention14 positive3 negative

Customers like the appearance of the outdoor recreation product. They mention that the rainbow anodizing looks good and has a nice shine. Some appreciate the detailed designs and the oil slick finish.

"Looks great and does what I needed. Brought my bars lower and closer like I wanted." Read more

"...otherwise--it is very pleasing aesthectically... and works like a stem should" Read more

"I used this in on my MARLIN 7 TREK and it looks great and feels even better...." Read more

"The positive:- The oil slick finish looked nice.The Negative:-..." Read more

14 customers mention11 positive3 negative

Customers like the quality of the outdoor recreation product. They mention that the stem bracket is solid and well made. Some say that the hardware they use is not compatible with the product. Overall, most are satisfied with the quality and value of the product, making it worth the money.

"...Worth the money for sure." Read more

"the actual stem bracket is solid and seems to be well made, BUT the hardware they use it very cheap...." Read more

"...The design is nice, it is made well and no issues with torqueing the bolts down. Overall very good quality and happy with it." Read more

"...The metal used, while very light, seemed very weak, almost like plastic.-..." Read more

5 customers mention5 positive0 negative

Customers are satisfied with the performance of the outdoor recreation product. They mention that it looks great, works well, and is stylish.

"...otherwise--it is very pleasing aesthectically... and works like a stem should" Read more

"Works good" Read more

"Nice and shiny color. Works great on my bike. Better handling" Read more

"Looks great, works well. Nice and stylish!..." Read more

6 customers mention3 positive3 negative

Customers have mixed opinions about the weight of the outdoor recreation product. Some mention it's light weight, while others say it'll be heavy.

"...The metal used, while very light, seemed very weak, almost like plastic.-..." Read more

"...Cons:Not even close to the lightest stem out there. It's really heavy...." Read more

"Looks great. Plenty strong. No problems.Really light. Has torque specs on the stem...." Read more

"The stem looks good and appears to be good quality. It is definitely on the heavier side compared to other stems I’ve owned." Read more

3 customers mention0 positive3 negative

Customers are dissatisfied with the support of the outdoor recreation product. They mention that the stem mounting surface is uneven and would not evenly support the headset bearings.

"...bearing mounting surface is not parallel and it would not evenly support the headset bearings...." Read more

"...and I'm not going to use it because there's potential for uneven loading on the headset bearings. This is clearly a flaw in design." Read more

"The stem mounting surface is very uneven and doesn’t sit flush against the headset...." Read more

WOW
5 Stars
WOW
Since we started our adventure with mtbs we have used nothing but the stems and have had no issues with them. They are seriously amazing I will be buying them in bulk for my other bike we build.
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Top reviews from the United States

Reviewed in the United States on August 11, 2023
Color: ColourfulVerified Purchase
Looks great and does what I needed. Brought my bars lower and closer like I wanted.
Reviewed in the United States on December 22, 2023
Color: ColourfulVerified Purchase
Ok, the bolts are very soft--you should consider some better quality aftermaket bolts. The clamping area is unfinished and rough--it will scratch off the clear coat on your carbon bar or the anodizing on your alloy bar--which I did not expect or catch in time without mucking up my anodized gold handlebar

otherwise--it is very pleasing aesthectically... and works like a stem should
Reviewed in the United States on December 12, 2022
Color: BlackVerified Purchase
I used this in on my MARLIN 7 TREK and it looks great and feels even better. Much more control when I’m jumping,bombing hills, or just messing around at the skatepark. Worth the money for sure.
Reviewed in the United States on March 20, 2024
Color: ColourfulVerified Purchase
Since we started our adventure with mtbs we have used nothing but the stems and have had no issues with them. They are seriously amazing I will be buying them in bulk for my other bike we build.
Customer image
5.0 out of 5 stars WOW
Reviewed in the United States on March 20, 2024
Since we started our adventure with mtbs we have used nothing but the stems and have had no issues with them. They are seriously amazing I will be buying them in bulk for my other bike we build.
Images in this review
Customer image Customer image
Customer imageCustomer image
One person found this helpful
Report
Reviewed in the United States on February 4, 2022
Color: ColourfulVerified Purchase
The positive:
- The oil slick finish looked nice.

The Negative:
- When backing out the faceplate bolts, two of them were very difficult to remove. Once finally removed, I saw why: The internal threading had been stripped and was stuck in the bolt threads. So obviously I wasn’t able to use the stem.
- The metal used, while very light, seemed very weak, almost like plastic.
- Just holding my Spank handlebars up to the stem to see how they would look scratched the finish of the handlebars off.
- The curve of the stem didn’t match the curve of my new handlebars, which would have left a gap between the stem and the bars had I installed them
- Finally, the bottom of the stem that butts up against the spacers is curved, so it doesn’t sit tight against those, revealing some of the steerer tube.

Final thoughts: Even if the item I received was a defect that got overlooked by QC, $35 is way too much for what you get. I’ll be looking elsewhere and would recommend you do the same.
2 people found this helpful
Report
Reviewed in the United States on October 8, 2022
the actual stem bracket is solid and seems to be well made, BUT the hardware they use it very cheap.
both heads of screws are totally stripped, now i can no longer even get the screws out. i guess ill have to drill them out? I torque screws for a living at my drop, I defiantly didn't over tighten them too much either.
One person found this helpful
Report
Reviewed in the United States on August 14, 2019
Put this stem on my road bike to go from a 80mm stem to a 50mm stem. It looks great, the red perfectly matches the other anodized red I have on my bike. The design is nice, it is made well and no issues with torqueing the bolts down. Overall very good quality and happy with it.
Customer image
5.0 out of 5 stars Looks great, works well. Nice and stylish!
Reviewed in the United States on August 14, 2019
Put this stem on my road bike to go from a 80mm stem to a 50mm stem. It looks great, the red perfectly matches the other anodized red I have on my bike. The design is nice, it is made well and no issues with torqueing the bolts down. Overall very good quality and happy with it.
Images in this review
Customer image Customer image
Customer imageCustomer image
One person found this helpful
Report
Reviewed in the United States on April 6, 2021
Color: ColourfulVerified Purchase
Like:
The fitment is good and geometry is as advertised, if you want to bring your bars in closer to the steerer tube with just a little bit of rise- this is it.
Appears to be incredibly STRONG!
The exterior surfaces are *mostly smooth and rounded, you shouldn't be in danger of getting poked on a corner.
It looks cool 😎
Rainbow anodizing looks good and nice shine.

Cons:
Not even close to the lightest stem out there. It's really heavy.
Not the best QC job on the finish, it's not chamfored, deburred, or even sanded on some of the cutouts and they are sharp enough to cut skin, or leave some brutal scratches in your bars/steerer.
The screen printing looks really stupid, and it's ALL OVER

If you're buying this, you're probably valuing aesthetic over weight savings.
Good for you.
50-60g really is negligeble compared to hauling around that much steeze.
Customer image
4.0 out of 5 stars Shiny
Reviewed in the United States on April 6, 2021
Like:
The fitment is good and geometry is as advertised, if you want to bring your bars in closer to the steerer tube with just a little bit of rise- this is it.
Appears to be incredibly STRONG!
The exterior surfaces are *mostly smooth and rounded, you shouldn't be in danger of getting poked on a corner.
It looks cool 😎
Rainbow anodizing looks good and nice shine.

Cons:
Not even close to the lightest stem out there. It's really heavy.
Not the best QC job on the finish, it's not chamfored, deburred, or even sanded on some of the cutouts and they are sharp enough to cut skin, or leave some brutal scratches in your bars/steerer.
The screen printing looks really stupid, and it's ALL OVER

If you're buying this, you're probably valuing aesthetic over weight savings.
Good for you.
50-60g really is negligeble compared to hauling around that much steeze.
Images in this review
Customer image
Customer image
2 people found this helpful
Report